PDBe 4kga

X-ray diffraction
2.32Å resolution

Crystal structure of kallikrein-related peptidase 4

Released:

Function and Biology Details

Structure analysis Details

Assembly composition:
monomeric (preferred)
Entry contents:
1 distinct polypeptide molecule
Macromolecule:
Kallikrein-4 Chains: A, B
Molecule details ›
Chains: A, B
Length: 223 amino acids
Theoretical weight: 23.93 KDa
Source organism: Homo sapiens
Expression system: Escherichia coli
UniProt:
  • Canonical: Q9Y5K2 (Residues: 31-253; Coverage: 98%)
  • Best match: Q9Y5K2-2 (Residues: 1-110)
Gene names: EMSP1, KLK4, PRSS17, PSTS
Sequence domains: Trypsin
Structure domains: Trypsin-like serine proteases

Ligands and Environments

2 bound ligands:

No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: AUSTRALIAN SYNCHROTRON BEAMLINE MX1
Spacegroup: P4
Unit cell:
a: 99.308Å b: 99.308Å c: 41.019Å
α: 90° β: 90° γ: 90°
R-values:
R R work R free
0.222 0.22 0.264
Expression system: Escherichia coli